U.S. patent number 5,381,628 [Application Number 08/181,216] was granted by the patent office on 1995-01-17 for door holder/door stop.
This patent grant is currently assigned to Architectural Builders Hardware Mfg. Inc.. Invention is credited to Richard D'Hooge.
United States Patent |
5,381,628 |
D'Hooge |
January 17, 1995 |
Door holder/door stop
Abstract
A door holder/stop for attachment between a door and a door
frame has an elongate first and second arms attached with one end
of the first arm overlapping a portion of the second arm to provide
a single adjustable length arm. To join the ends of the first and
second arms to each other in overlapping relationship, one of the
elongate arms has a transverse hole near the second end thereof and
a longitudinal slot extending through a portion of the length with
one end of the slot positioned a short distance from the transverse
hole. The other of the elongate arms has a plurality of threaded
holes spaced along the length thereof. A first threaded screw is
passed through the transverse hole of the one arm and into one of
the threaded holes of the other arm, and a second threaded screw is
passed through the slot of the one arm and into a second threaded
hole in the other arm.
Inventors: |
D'Hooge; Richard (Wood Dale,
IL) |
Assignee: |
Architectural Builders Hardware
Mfg. Inc. (Elk Grove Village, IL)
|
Family
ID: |
22663371 |
Appl.
No.: |
08/181,216 |
Filed: |
January 13, 1994 |
Current U.S.
Class: |
49/394;
16/49 |
Current CPC
Class: |
E05C
17/28 (20130101); E05C 17/30 (20130101); E05B
63/0056 (20130101); Y10T 16/27 (20150115) |
Current International
Class: |
E05C
17/00 (20060101); E05C 17/30 (20060101); E05C
17/28 (20060101); E05B 63/00 (20060101); E05C
017/00 () |
Field of
Search: |
;49/394 ;16/49,82 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Redman; Jerry
Claims
What is claimed:
1. A door check assembly for attachment between a door frame and a
door comprising in combination:
a first elongate arm member having a first end and a second
end;
first attachment means for pivotally attaching said first end of
said first arm to one of a door and a door frame;
a second elongate arm member having a first end and a second
end;
second attachment means for slideable and pivotal attachment of
said first end of said second arm to the other of a door and a door
frame;
said second end of one of said first arm and said second arm having
a plurality of threaded holes spaced along the length thereof;
said second end of the other of said first arm and said second arm
having a transverse hole therethrough;
said other of said first arm and said second arm further having an
elongate slot extending through a portion of the length thereof
between said transverse hole and said first end thereof; and
said second ends of said arms attached to each other by a first
screw through said transverse hole and into one of said plurality
of threaded holes and a second screw through said elongate slot and
into another of said plurality of threaded holes.
2. A door check assembly in accordance with claim 1 and further
comprising:
locking means for releasably locking said first end of said second
arm against sliding movement along the other of a door and a door
frame,
3. A door check assembly in accordance with claim 1 and further
comprising:
adjustable resistance means on said second attachment means for
providing frictional resistance to slideable movement of said first
of said second arm along the other of a door and a door frame.
4. A door check assembly in accordance with claim 1 further
comprising:
said second attachment means having an elongated track and a slide
slideable along said track;
said first end of said second arm pivotally attached to said slide;
and
locking means for releasably locking said slide against movement
along said track.
5. A door check assembly in accordance with claim 4 wherein said
slot further comprises a pair of opposing lips, one of said lips
positioned on each side of said slot.
Description
The present invention relates to devices for holding a door in an
open position and, in particular, to door holders/stops i.e., check
assemblies with an arm that adjusts to lengths suitable for the
door to which it is attached.
BACKGROUND OF THE INVENTION
It is frequently desirable to retain a door in a fixed orientation
such as an open position, and door holders/stops are available
having an arm which extends between a door and the associated door
frame to retain the door in an open or stop position. As the door
is opened, one end of the arm slides longitudinally within a track
parallel to the floor and secured to either the door or the door
frame. Such door holders have a releasable latch which can lock the
sliding portion of the holder in a fixed position on the track to
retain the door in the desired open or stop position, thereby
preventing closing and excessive opening of the door.
SUMMARY OF THE INVENTION
Briefly, the present invention is embodied in a door holder/stop
for attachment between a door and a door frame. The device has an
elongate first arm, the first end of which is pivotally attached to
a portion of a door frame. The second end of the first arm is
attached to the second end of a second elongate arm in overlapping
relationship to form a single adjustable length arm. The first end
of the second arm is pivotally connected to a slide which is
movable along a track fitted against the door. A thumb wheel
positioned in the track can be turned to lock the slide against
movement and thereby lock the door in an open position.
To join the second ends of the first and second arms to each other
in overlapping relationship, one of the elongate arms has a
transverse hole near the second end thereof and a longitudinal slot
extending through a portion of the length with one end of the slot
positioned a short distance from the transverse hole. The other of
the elongate arms has a plurality of threaded holes spaced along
the length thereof. To attach the second ends of the arms to each
other, a first threaded screw is passed through the transverse hole
of the one arm and into one of the threaded holes of the other arm,
and a second threaded screw is passed through the slot of the one
arm and into a second threaded hole in the other arm.
GENERAL DESCRIPTION OF THE DRAWINGS
A better and more complete understanding of the present invention
may be had by a reading of the following description taken in
connection with the accompanying drawings wherein:
FIG. 1 is a fragmentary perspective view of a door and door frame
having a door holder/stop in accordance with the present invention
attached thereto and portions thereof are shown in phantom
lines;
FIG. 2 is a top view of the door holder/stop shown in FIG. 1 which
has been detached from a door and frame, with portions thereof
shown in phantom lines;
FIG. 3 is a cross-sectional view of the linkage between the first
and second arms taken through line 3--3 of FIG. 2; and
FIG. 4 is a cross-sectional view of the linkage between the first
and second arms taken through line 4--4 of FIG. 3.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
Referring to FIG. 1, a door 10 is pivoted on a plurality of hinges
and closes against a door frame 12, only a portion of which is
depicted. The door frame 12 includes parallel upstanding sides, not
shown, and a central portion having a substantially horizontal
lower surface 13 which extends across the top of the door when the
door is in the closed position. A door holder/stop 14 in accordance
with the present invention extends between the upper inner edge 16
of the door 10 and the lower surface 13 of the central portion of
the door frame 12.
Referring to FIG. 2 the door holder/stop 14 has a mounting plate 20
and attached by a pivot 21 to the mounting plate 20 is the first
end 22 of a first arm 23. The mounting plate 20 also has a
plurality of holes 24 for receiving a like number of threaded
screws to retain the plate 20 against either the lower surface 13
in the center of the door frame 12 or the upper surface 16 of the
door 10. In FIG. 1, the mounting plate 20 is depicted as being
attached to the lower surface 13 of the door frame 12. The second
end 26 of the first arm 23 is attached in overlapping relationship
to the second end 28 of a second elongate arm 30. The first end 32
of the second arm 30 has a pivot 34 for pivotal attachment to a
slide 36.
As shown in FIGS. 1 and 2, the slide 36 has a block shaped body
with a generally rectangular upper surface 38 and rectangular side
surfaces 40, 41. The slide 36 is adapted to fit within a track 42
which has a rectangular cross section for slidably receiving the
slide 36, and has end portions 44, 46, respectively. A plurality of
screws or the like retain the track 42 against the upper edge 16 of
the door 10. A set screw 48 threaded into a vertically oriented
transverse hole, not shown, extending through the body of the slide
36 can be tightened against the bottom of the track to create
resistance to the movement of the slide 36 along the track 42.
Tightening of the screw will increase the resistance to movement of
the slide 36 and prevent the door to which it is attached from
swinging freely.
A thumb wheel 56 positioned at end portion 46 of the track 42
rotates to engage or disengage a pawl 57 against a hook 58 on the
slide 36. The pawl 57 and the hook 58 provide a locking means to
lock the slide against further movement along the track 42.
Referring to FIGS. 1, 2, 3 and 4, to retain the second ends 26, 28
of the first and second arms 23, 30, respectively, in overlapping
end relationship, a plurality of transverse threaded holes 59--59
are spaced along a substantial portion of the length of the first
arm 23 with the last threaded hole 59 positioned near the second
end 26 of the first arm 23. Near the second end 28 of the second
arm 30 is a transverse hole 60 and centrally located through the
length of the second arm 30 is a longitudinal slot 62 one end of
which is positioned near the transverse hole 60. As best shown in
FIG. 4, the longitudinal slot 62 has opposing inner lips 64, 66
positioned along the sides thereof adjacent the surface which abuts
against the first arm 23.
To join the second end 28 of the second arm 30 to the second end 26
of the first arm 23, a first threaded bolt 70 is fitted through the
transverse holes 60 of the second arm 30 and into one of the
threaded holes 59--59 of the first arm 23, and a second threaded
bolt 72 is fitted through the slot 62 of the second arm 30 and into
another of the threaded holes 59--59 of the first arm 23. As can be
seen in FIG. 3 and 4, the opposing first and second lips 64, 66
along the sides of the slot 62 fit alongside the head of the second
screw 72 to contain the screw 72 when the first and second arms 22,
30 are assembled to each other. Similarly, the transverse hole 60
near the end of the second arm 30 is countersunk and the head of
the first fitted screw 70 is substantially flush with the outer
surface 74 of the second arm 30.
The open position at which the door 10 is to be held relative to
the door frame 12 can be adjusted by removing the screws 70, 72
from the holes in which they are fitted and moving the first and
second arms 23, 30 longitudinally relative to one another and
reinsetting the screws 70, 72 to thereby change the length of the
combined arms 23, 30. In this manner, the door holder/stop 14 can
also be adjusted for use on any door and door frame.
While the present invention has been described in connection with
one embodiment, it will be appreciated by those skilled in the art
that many changes and modifications can be made without departing
from the true spirit and scope of the present invention. Therefore,
it is intended by the appended claims to cover all such changes and
modifications which come within the true scope and spirit of the
invention.
* * * * *